如何禁止在 Android EditText 中输入表情符号?

问题描述

EditText 和 TextView 的 text inputType(URI、密码等除外)的大多数实现都允许 Emoji - 尽管在大多数 Google 键盘配置中此按钮是隐藏的.有没有办法禁止在 EditText 中输入表情符号?是否有一个 inputType 参数可以与禁用 Emoji 的 textMultiLine 配对?

Most implementations of the text inputType (other than URI, password, etc.) for EditText and TextView allow Emoji - although in most Google keyboard configurations this button is hidden. Is there a way to disable Emoji from being entered in an EditText? Is there an inputType parameter that could be paired with textMultiLine that would disable Emoji?

推荐答案

修改build.gradle文件，添加XEditText 到你的项目:

Modify build.gradle file, add XEditText to your project:

dependencies{
    compile 'com.xw.repo:xedittext:2.0.0@aar'
}

之后，在您的 layout.xml 中:

<com.xw.repo.XEditText
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:x_disableEmoji="true"/>

或者:

像这样自定义 EditText:

Or:

Customize EditText like this:

public class CustomEditText extends EditText {
    public CustomEditText(Context context) {
        super(context);
        init();
    }

    public CustomEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public CustomEditText(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init() {
        setFilters(new InputFilter[]{new EmojiExcludeFilter()});
    }

    private class EmojiExcludeFilter implements InputFilter {

        @Override
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
            for (int i = start; i < end; i++) {
                int type = Character.getType(source.charAt(i));
                if (type == Character.SURROGATE || type == Character.OTHER_SYMBOL) {
                    return "";
                }
            }
            return null;
        }
    }
}

两者都可以正常工作！

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